<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
    <title>GEN02</title>
    <link rel="stylesheet" type="text/css" href="csound.css" />
    <meta name="generator" content="DocBook XSL Stylesheets V1.78.1" />
    <link rel="home" href="index.html" title="The Canonical Csound Reference Manual" />
    <link rel="up" href="ScoregensTop.html" title="Score Statements and GEN Routines" />
    <link rel="prev" href="GEN01.html" title="GEN01" />
    <link rel="next" href="GEN03.html" title="GEN03" />
  </head>
  <body>
    <div class="navheader">
      <table width="100%" summary="Navigation header">
        <tr>
          <th colspan="3" align="center">GEN02</th>
        </tr>
        <tr>
          <td width="20%" align="left"><a accesskey="p" href="GEN01.html">Prev</a> </td>
          <th width="60%" align="center">Score Statements and GEN Routines</th>
          <td width="20%" align="right"> <a accesskey="n" href="GEN03.html">Next</a></td>
        </tr>
      </table>
      <hr />
    </div>
    <div class="refentry">
      <a id="GEN02"></a>
      <div class="titlepage"></div>
      <a id="IndexGEN02" class="indexterm"></a>
      <div class="refnamediv">
        <h2>
          <span class="refentrytitle">GEN02</span>
        </h2>
        <p>GEN02 — 
      Transfers data from immediate pfields into a function table.
    </p>
      </div>
      <div class="refsect1">
        <a id="idp213368368"></a>
        <h2>Description</h2>
        <p>
      This subroutine transfers data from immediate pfields into a function table.
    </p>
      </div>
      <div class="refsect1">
        <a id="idp213412512"></a>
        <h2>Syntax</h2>
        <pre class="synopsis"><span class="command"><strong>f</strong></span> # time size 2 v1 v2 v3 ...</pre>
      </div>
      <div class="refsect1">
        <a id="idp213414544"></a>
        <h2>Initialization</h2>
        <p>
      <span class="emphasis"><em>size</em></span> -- number of points in the table. Must be a power of 2 or a power-of-2 plus 1 (see <a class="link" href="f.html" title="f Statement (or Function Table Statement)"><em class="citetitle">f statement</em></a>). The maximum tablesize is 16777216 (2<sup>24</sup>) points.
    </p>
        <p>
      <span class="emphasis"><em>v1, v2, v3,</em></span> etc. -- values to be copied directly into the table space. The number of values is limited by the compile-time variable <span class="emphasis"><em>PMAX</em></span>, which controls the maximum pfields (currently 1000). The values copied may include the table guard point; any table locations not filled will contain zeros.
    </p>
        <div class="note" style="margin-left: 0.5in; margin-right: 0.5in;">
          <table border="0" summary="Note: Note">
            <tr>
              <td rowspan="2" align="center" valign="top" width="25">
                <img alt="[Note]" src="images/note.png" />
              </td>
              <th align="left">Note</th>
            </tr>
            <tr>
              <td align="left" valign="top">
                <p>
        If p4 (the GEN routine number is positive, the table will be
        post-normalized (rescaled to a maximum absolute value of 1 after
        generation). A negative p4 will cause rescaling to be skipped. You will
        usually want to use -2 with this GEN function, so that your values are
        not normalized.
      </p>
              </td>
            </tr>
          </table>
        </div>
      </div>
      <div class="refsect1">
        <a id="idp213421344"></a>
        <h2>Examples</h2>
        <p>
      Here is an example of the GEN02 routine. It uses the files <a class="ulink" href="examples/gen02.csd" target="_top"><em class="citetitle">gen02.csd</em></a>.

      </p>
        <div class="example">
          <a id="idp213423120"></a>
          <p class="title">
            <strong>Example 1092. Example of the GEN02 routine.</strong>
          </p>
          <div class="example-contents">
            <p>See the sections <a class="link" href="UsingRealTime.html" title="Real-Time Audio"><em class="citetitle">Real-time Audio</em></a> and <a class="link" href="CommandFlags.html" title="Csound command line"><em class="citetitle">Command Line Flags</em></a> for more information on using command line flags.</p>
            <pre class="programlisting">
<span class="csdtag">&lt;CsoundSynthesizer&gt;</span>
<span class="csdtag">&lt;CsOptions&gt;</span>
<span class="comment">; Select audio/midi flags here according to platform</span>
-odac      <span class="comment">;;;realtime audio out</span>
<span class="comment">;-iadc    ;;;uncomment -iadc if realtime audio input is needed too</span>
<span class="comment">; For Non-realtime ouput leave only the line below:</span>
<span class="comment">; -o gen02.wav -W ;;; for file output any platform</span>
<span class="csdtag">&lt;/CsOptions&gt;</span>
<span class="csdtag">&lt;CsInstruments&gt;</span>

<span class="ohdr">sr</span> <span class="op">=</span> 44100 
<span class="ohdr">ksmps</span> <span class="op">=</span> 32 
<span class="ohdr">nchnls</span> <span class="op">=</span> 2 
<span class="ohdr">0dbfs</span>  <span class="op">=</span> 1 

<span class="oblock">instr</span> 1

ifn  <span class="op">=</span> p4				<span class="comment">;choose different tables of GEN02</span>
kcps <span class="opc">init</span> 1<span class="op">/</span>p3				<span class="comment">;index over the length of entire note</span>
kndx <span class="opc">phasor</span> kcps
ixmode <span class="op">=</span> 1				<span class="comment">;normalize index data</span>
kamp <span class="opc">tablei</span> kndx, ifn, ixmode
asig <span class="opc">poscil</span> kamp, 440, 1		<span class="comment">;use GEN02 as envelope for amplitude</span>
     <span class="opc">outs</span> asig, asig

<span class="oblock">endin</span>
<span class="csdtag">&lt;/CsInstruments&gt;</span>
<span class="csdtag">&lt;CsScore&gt;</span>
<span class="stamnt">f</span> 1 0 8192 10 1	<span class="comment">;sine wave</span>
<span class="stamnt">f</span> 2 0 5 2 0 2 0
<span class="stamnt">f</span> 3 0 5 2 0 2 10 0
<span class="stamnt">f</span> 4 0 9 2 0 2 10 100 0

<span class="stamnt">i</span> 1 0 2 2
<span class="stamnt">i</span> 1 3 2 3
<span class="stamnt">i</span> 1 6 2 4
<span class="stamnt">e</span>
<span class="csdtag">&lt;/CsScore&gt;</span>
<span class="csdtag">&lt;/CsoundSynthesizer&gt;</span>
</pre>
          </div>
        </div>
        <p><br class="example-break" />

        <span class="phrase">These are the diagrams of the waveforms of the GEN02 routines, as used in the example:</span>

      </p>
        <div class="mediaobject">
          <img src="images/gen02_1.png" alt="f 2 0 5 2 0 2 0" />
          <div class="caption">
            <p>f 2 0 5 2 0 2 0</p>
          </div>
        </div>
        <p>

      </p>
        <div class="mediaobject">
          <img src="images/gen02_2.png" alt="f 3 0 5 2 0 2 10 0" />
          <div class="caption">
            <p>f 3 0 5 2 0 2 10 0</p>
          </div>
        </div>
        <p>

      </p>
        <div class="mediaobject">
          <img src="images/gen02_3.png" alt="f 4 0 9 2 0 2 10 100 0" />
          <div class="caption">
            <p>f 4 0 9 2 0 2 10 100 0</p>
          </div>
        </div>
        <p>

    </p>
      </div>
      <div class="refsect1">
        <a id="idp213438000"></a>
        <h2>See Also</h2>
        <p>
       <a class="link" href="GEN17.html" title="GEN17"><em class="citetitle">GEN17</em></a>
     </p>
      </div>
      <div class="refsect1">
        <a id="idp213440144"></a>
        <h2>Credits</h2>
        <p>December 2002. Thanks to Rasmus Ekman, corrected the limit of the <span class="emphasis"><em>PMAX</em></span> variable.</p>
      </div>
    </div>
    <div class="navfooter">
      <hr />
      <table width="100%" summary="Navigation footer">
        <tr>
          <td width="40%" align="left"><a accesskey="p" href="GEN01.html">Prev</a> </td>
          <td width="20%" align="center">
            <a accesskey="u" href="ScoregensTop.html">Up</a>
          </td>
          <td width="40%" align="right"> <a accesskey="n" href="GEN03.html">Next</a></td>
        </tr>
        <tr>
          <td width="40%" align="left" valign="top">GEN01 </td>
          <td width="20%" align="center">
            <a accesskey="h" href="index.html">Home</a>
          </td>
          <td width="40%" align="right" valign="top"> GEN03</td>
        </tr>
      </table>
    </div>
  </body>
</html>
